Shield



Sept. 19, 1.933. H, W KULP ET AL 1,927,126

SHIELD Filed Dec. 5, 1952 Patented Sept. 19, 1933 SHIELD Harry W. Kuipand Martin C. Dellinger, Lancaster, Pa.

Application December 3,

7 Claims.

This invention relates to shields primarily intended for use in catchingthe removable keepers, keys or horse shoes commonly applied about thelower end of internal combustion engine-valve stems of the poppet typeto retain the valve springs `on said stems.

The present invention is an improvement on our invention forming thesubject matter of our Patent No. 1,776,159, granted Sept. i6, 1930. 10In practice in using the shield shown in said Patent No. 1,776,159 andsimilar shields, it has been found that in some instances the keepers orhorse shoes will stick very tightly in place on the valve stem eventhough the spring and its v.retaining cup have been raised to be wellout lof the way. This sticking of the keepers seems to be due, at leastto some extent, to the oil having partially dried out or solidiied'toform a gummy cementing agent that firmly holds them 20111 position. Insuch cases it is usual to press against them with a screw driver orsimilar tool so as to force them from position. in some instances it hasbeen found that they have been stuck so tightly that the force exertedon the screw driver to shove them from position results 'in shootingthem laterally inward, so that in such circumstances such keepers ofteny over the top edge of the inner end portion of the outer wall or ilangeof the shield and drop downward V into the crank case notwithstandingthe use of the shield.

Our present invention has been evolved or conn ceived with the foregoingfacts particularly in mind and has for its primary objects to provide .ashield for this purpose with a supplemental outer wall or flange whichmay be raised after the shield is inserted through the `usual accessopening and which as raised will, together with the outer flange,constitute a composite flange 40 of nearly double the height of theusual flange, whereby the shield may be inserted through a narrow spacewhich would not accommodate the tool with the supplemental wall raisedand yet have the advantage of the added height to the outer flange afterthe shield is inserted; `to pron vide in such a tool means for operatingsaid supplemental flanges or walls to raise and lower the operativeportionsvthereof; and to provide automatic means for lowering theoperative portions of said supplemental ilanges or walls as the shieldis opened and to automatically raise the same as the shield is closed.

In this application we show and describe only the present preferredembodiment of our invention simply by way of illustration of thepractice 1932. Serial No. 645,596

Figure 4, a top plan view thereof, in open condition;

Figure 5, a side elevation thereof in open condition; Y

Figure 6, a sectionalview on a line corresponding to line 6-6 of Fig. 2,the parts being illus- 75 trated in the positions they occupy when themembers A and B are about half way between their Aextreme positionsshown in Figs. 2 and 4 respectively; and

Figure '7, a fragmentary detailed View on these line 7-7 of Fig. 2,looking in the direction of the arrows.

Referring now in detailto the drawing, A designates one member of theshield; B, the other member of the shield, said membersA being lapped'85 and pivotally connected by a pivot pin C, a coiled spring D beinganchored and positioned by said pin C and having arms E whichrespectively carry at their extreme end portions hooks F to engage therespective outer side 'edge portions of the 90 members A and B atcut-out or recessed portions G to force said members A and B toward eachother to closed position under the action of said spring D. Each memberA and B is provided with a rearwardly extending thumb piece or hgerpiece H extending to the rear of the pivot. pin C, said nger pieces H tobe pressed toward each other to open themeinbers A and E and to bereleased to allow said members to move to closed position under theaction of spring D. Each of said members A and B is provided with anouter edge wall or flange I and with an inner edge wall or flange J.

The parts specifically immediately above referred to'and theirinterrelation are fully set 105 forth and described in detail in saidPatent No. 1,776,159, so that a more detailed description herein is notthought either necessary or desirable.

The improvements of the present invention comprise two supplementalouter edge flanges or walls l respectively pivotally vconnected totherespective members A and B at their outer or rear end portions by anysuitable means, such as pivot pins 7 passing outward through verticallugs 6 respectively integral with the respective members A and B, andthrough the outer or rear end portions of the respective supplementalflanges or walls l, preferably receiving on their outer end portionswashers 8 and having their extreme outer end portions riveted over orupset against said washers 8. Each member 1 is formed with anapproximately inverted and reversed L-shaped slot 2 about midway of itslength to receive the holding, guiding and stop ngers 3 respectivelyintegral with and stamped and inwardly pressed from the respective outeredge flanges I of the respective members A and B. Each supplementalflange 1 preferably has the lower part of its curved inner or forwardedge portion cut away as indicated at e to avoid any possible bindingagainst the inner face of the corresponding or the cooperating outeredge ilange I, there being j left in the extreme inner or front portionof each 25 element 1 a depending finger 5 extending substantially belowthe upper edge of the cooperating outer edge flange I and so preventingthe bending or yielding inwardly of said supplemental flanges or walls 1under the impact of a keeper 30 or horse shoe flying from position asforced loose as referred to.

To the rear of the respective pivots 7 the respective supplementalflanges or walls l have their :rear end portions turned abruptly towardeach other, preferably at right angles to their adjacent portions, andhave said inwardly turned portions formed with depressing or retractingor telescoping upper lingers 12 and raising or elevating lower fingers14 spaced from each other by a slot 13, the respective slots 13 slidablyreceivinggthe inclined cams l0 preferably integral with flanges 9, whichin turn are preferably integral vwith the respective members A and B,the member B being y arcuately slotted as at 11 to permit the passagetherethrough of the lug 9 integral with member A.

In assembling the supplemental flanges 1' are first inserted in theircorresponding members A ,and `B, the horizontal upper portion of theslot 2 being fitted in registry with the corresponding lug 3 to receivethe same, and saidsupplemental flange or wall 1 being thereafter shovedforward until the perforation in its rear portion is in registry withthe perforation in the corresponding lugs 7, when the pivot pin or rivet'l is passedthrough the registering perforations, the washer 8 appliedand the ends of the rivet or pivot 'Z headed over as usual. Thereafterthe ytwo members A and B with their supplemental of the lug 9 carried bymember A similarly dis-- posed in the slot 13 of the supplemental flange1` carried by member B.

In use the finger pieces H are first pressed toward each other, forcingthe portions of the 70j members A and B on the other side or. forward ofthe pivot pin C to swing away from each other to open position. At thesame time the upper faces of the cams `l0 engage the respective opposedlower edge faces of the depressing fingers 12, so forcing said fingersand the rear portions of the supplemental flanges 1 upward about theaxes of the pivots '7 and forcing the inner or front portions of saidsupplemental flanges 1 downward to their lowest positions as shown inFig. 5. `In this condition the forward portion of the tool is insertedabout the valve stem or tappet and pressure on the nger pieces I-I isreleased, allowing the members A and B to move to closed position, asillustrated in Fig. 2, under the action of the spring D. In so movingthe lower or under faces of the respective cams l0 will slidably engagethe opposed upper faces of the respective lower fingers lll and forcethe same downward about the respective pivot pins 7 and of course at thesame time cause the inner or forward portions of the supplementalflanges l to rise, the upward movement of said forward portions of thesupplemental flanges l being limited by the contact of the lower endedge of the vertical portions of the respective slots -2 with therespective opposed faces of the respective lugs 3.

In the assembled relation of the parts the re-` spective lugs 3` willextend lengthwise of therespective supplemental walls 1 rearwardlyappreciably beyond the rear edges` or walls of the respective slcts 2and will lie substantially parallel 100 thereto to hold the respectivesupplemental flanges or walls 1 in proper relationship to the respectiveouter edge walls or flanges I.

The cams l0 will preferably be of thin sheet metal ,of the same stoel:andthickness as the 105 metal from which the members A and B are formedand preferably the upper and lower faces of each cam l0 will be parallelor substantially parallel to each other.

The exact construction and form of the slots 2 110 and cooperating lugs3 are not of importance and indeed they might entirely be omitted.

The exact construction of the lugs 9, cams '10, and cooperating fingersl2 and 14 is not of importance considering our invention in its broaderaspectait suicing if there be `means provided whereby said supplementalflanges or walls l may be raised and lowered as desired in the use ofthe tool. Less broadly considered, the exact details of construction ofthe lugs 9, flanges 10 and cooperating fingers 12 and 14 is not ofimportance, it sulflcing if there be provided automatic means forraising and lowering the` supplemental walls or flanges 1 as the saidmembers A and B are closed and opened. .125

In the drawing, Figs.V 2V to 7 inclusive are drawn to exact full-sizescale, from an actual commercial embodiment of our invention, and Fig. lwas drawn, from said commercial embodiment and is intended to be of thesame size as said embodiment as viewed from the angle and distance fromwhich said view was made, but said view being a perspective view'therehas been no attempt to adhere to exact scale in said Fig. l.

Having-thus described our invention, what we 105 claim as new and desireto secure by Letters V Patent is:

l. A device cf the character described comprising a plurality of platesrespectively having vertical flanges extending lengthwise and across thefront end portions of the respective plates, a pivot pin extendingthrough said plates and pivctally connecting the same, and a spring ac*-ing to swing said plates toward each other about the axis of said pivotpinto closed position, in 145 combination with a pair of perforated lugsrespectively integral with, and extending vertically from, said platesrespectively, a pair of supplemental flanges respectively disposedsubstantially parallel to the flanges of their respec- 150 tivecooperating plates and having rear end portions bent inwardly in opposedrelation to each other, means for pivotally mounting the respectivesupplemental flanges on the respective perforated lugs at a point inadvance of said rear inwardly bent portions, said inwardly bent portionsrespectively being provided with upper depressing fingers and lowerelevating fingers, lthe said upper and lower fingers or said portionsbeing spaced from each other by a slot, a pair of cam iianges integralwith the respective plates and a pair of cams respectively inclined tothe vertical endwise of the device and yintegral with said cam flanges,and respectively received in the slots of the respective rear endportions of said supplemental flanges, said cams respectively slidablyengaging the lower edge faces of the respective upper depressing fingersas the said plates are swung about their pivotal point to open position,whereby said supplemental anges are rocked about their points of pivotalmounting to depress their forward ends, and said cams respectivelyslidably engaging the upper faces of the respective lower elevatingngers as the plates are swung about their pivotal point to closedposition under the influence of said spring, whereby said,

supplemental flanges are rocked about their points of pivotal mountingto depress their rear portions and to elevate their front portions.

2. A device of the character described comprising a plurality of platesrespectively having vertical flanges extending lengthwise and across thefront end portions of the respective plates, means for mounting saidplates for relative swinging movement toward and from each other, andmeans normally acting to urge said plates toward each other to closedposition, in combination with a pair of lugs respectively integral with,and extending vertically from, said platesrespectively, a pair ofsupplemental lianges having rear end portions bent inwardly in opposedrelation to each other, means for pivotally mounting the respectivesupplemental flanges on the respective lugs at a point in advance ofsaid rear inwardly bent portions, said inwardly bent portionsrespectively being provided with upper depressing fingers and lowerelevating lingers, and means respectively carried by the respectiveplates and moving therewith and respectively operatively engaging one orthe other of the respective depressing or elevating fingers inaccordance with the direction of relative movement of said plateswhereby said supplemental flanges are rocked about their points ofpivotal mounting.

3. A device of the character described comprising a plurality of platesrespectively having vertical flanges extending lengthwise and across thefront end portions of the respective plates, means for mounting saidplates for relative swinging movement toward and from each. other, andmeans urging said plates toward each other to closed position, incombination with a pair of lugs respectively integral with, andextending vertically from, said plates respectively, a pair ofsupplemental flanges respectively disposed adjacent to the flanges oftheir respective cooperating plates and having rear end portions bentinwardly in opposed relation to each other, means for pivotally mountingthe respective supplemental anges on the respective lugs at a point inadvance of said rear inwardly bent portions, said inwardly bent portionsrespectively being provided with upper depressing lingers and lowerelevating fingers, and means carried by the respective platesand'operated by the relative movement thereof to engage thedepressing-or elevating, fingers according to the direction of saidrelative movement to cause corresponding rocking movement of therespective supplemental flanges about their respective points of pivotalmounting.

ll. A device of the character described comprising a plurality of platesrespectively having vertical fianges extending lengthwise and across thefront end portions of the respective plates, means for mounting saidplates for relative swinging movement, and means urging said platestoward eachother to closed position, in combination with a pair ofsupplemental iianges respectively disposed adjacent to the anges oftheir respective cooperating plates, means for pivotally mounting therespective supplemental flanges on the respective plates, and meansoperated by the relative movement of said plates to rock saidsupplemental nanges about their respective points of pivotal mounting.

5. rA device of the character described comprising a plurality of platesrespectively having vertical fianges extending lengthwise and across the`front end portions of the respective plates, and

means for mounting said plates for relative swinging movement, incombination with a pair of supplemental flanges respectively disposedadjacent to the flanges of their respective cooperating plates, meansfor movablyrnounting the respective supplemental flanges on therespective plates for movement with relation to the opposed faces of'the respective flanges of said plates respectively, and means operatedby the relative movenient of said plates to cause corresponding movementof the said supplemental flanges.

6. A device of the character described comprising a plurality of platesrespectively having Vertical anges extending lengthwise and across theiront end portions ofthe respective plates, and means for mounting saidplates for relative swinging movement, in combination with a pair ofsupplemental flanges respectively disposed adjacent to the flanges oftheir respective cooperating plates, means for movably mounting therespective supplemental flanges on the respective plates, and meansoperable in accordance with the movement oi said plates with relation toeach other to cause corresponding movement of said supplemental flanges.

7. A device of the character described comprising a plurality of platesrespectively having vertical flanges, and means for mountinglsaid platesfor relative swinging movement, in combination with a pair ofsupplemental flanges respectively disposed adjacent to the flanges oftheir cooperating plates, and means for movably mounting the respectivesupplemental anges on the respective plates.

HARRY W. KULP. MARTIN C. DELLINGER.

